feister



(No Model.) V ZSheets-Sheet 1.

. H. P. FEISTBR.

PAPER BAG.

N. PEI'EBS. MW, wummnc (No Model.) 2 sh ets-sheet 2; 2

' H. P.- FEISTER.

PAPER BAG.

' No. 325,922. Pat'ehted Sept.-8, 1885;"

citizen of the United States, and a resident of discarding for the time being the view, Fig.

i -UNITED STATES PATENT CFFICE.

HENRY P. FEISTER, or PHILADELPHIA, PENNSYLVANIA, ASSIGNOR r0 MARTIN NIXON AND WILLIAM H. NIXON, BOTH or SAME PLACE.-

PAPER BAG.

I SPECIFICATION forming part of Letters Patent No. 325,922, dated September 8, 1885.

Application filed February 2, 1885. (No model.) 7 I i T 0 all whom it may concern:

Be it known that I, HENRY P. FEISTER, a

Philadelphia, Pennsylvania, have invented certain Improvements in Paper Bags, of which the following is a specification.

My invention consists of a paper bag folded and pasted at the end to form a bottom, the seams of which are invisible, as hereinafter claimed and specified.

In the accompanying drawings, Figure 1, Sheet 1, is a side view of the blank; Fig.2, also a side view representing a slightly-modified form of blank; Figs. 3, 4, 5, and 6,perspective views, showing the mode of folding the end of the blank to form the bottom of the bag; Figs. 7 and 8, perspective views of the bags as they appear when collapsed for storage or transportation; Figs. 9, 10, and 11, Sheet 2, perspective views illustrating the-advantage of the modified blank, Fig. 2. v

The blank to be formed into a bag consists of a section, A, of a quadrangular tube of paper, the term quadrangular being intended to apply to the blank, whether it is distended or collapsed, but when distended it has a tendency to assume a quadrangular or an approxi mately quadrangular form, because it has been creased by subjecting it to a former of corresponding form. The tube has been so severed while distended that it has an inclined termination, either as shown by the straight line 00 in Fig. 1 or by the curved line 3 in Fig.2, the term inclined being intended to apply to both.

The operation whichI am about to describe will be performed by a machine which will hereafter form the subject of an application for a patent; but I will explain here how the bottom of the bag may be formed by hand,

2, and referring to Figs. 1, 3, 4, 5, 6, 7, and 8, Sheet 1. i

We will suppose that the blank A, Fig. 1, is on the former D, a portion, M, of the blank projecting beyond the end a of the former, and this projecting portion being composed of the two angular and opposite sides, m m, the bottom n, and the top, a, which is necessarily much narrower than the bottom, (see Fig. 3,)

end a of the former D, the said end being at right angles to the sides, forms the backing which determines the limit of the above-described folds and determines the quadrangular shape of the bottom of the bag, which is now withdrawn from the former.

It should be stated here that I prefer to crease the opposite sides of the quadrangular paper tube from which the sections or blanks are severed on the dotted lines t, so that when the bags are withdrawn from the former they may be readily collapsed, as shown in Fig. 7, p

or as illustrated in Fig. 8, so as to be packed in a small compass for storage and transportation.

Referring now to the blank A, Fig. 2,

Sheet 1, and the views, Figs. 9, 10, and 11,.

Sheet 2, it will be seen that the end of the quadrangular blank has been severed from the paper tube on a curve, y. While the end of this blank is folded to form the bottom of the bag in the same manner as the blank A, it possesses over the latter an advantage which may be explained as follows:

At the corners to w, Fig. 10, where the top fold, a, overlaps the infolded sides m 111/, there are necessarily three thicknesses of paper, and

when the blank is made in the manner shown in Fig. 1 the bottom a will have at the corners two thicknesses of paper to bear against the thick corners w w; but when the end of the blank is made on a curve the portions of the sides m m which are folded against the inner side of the bottom are so inclined as to escape the folds at the corners w w. (See Fig. '10.) This may be further explained in connection with Fig. 11, which is an end view of the bag, with the bottom fold, n, partly turned down to expose the inner sides of the same and show the fold a? and parts of the ICC side folds. Inclined ridges are formed at the corners w w, the shaded portions showing where there are three thicknesses of paper.

The inner folds, m m, of the bottom are such as to escape these ridges when the said bottom is turned up against the fold 12; but should the tube be severed on a straight inolined line,"

as in Fig; 1, the condition of the folds in m against the inner sides of the bottom would be that shown by dotted lines in Fig. 11, and these folds would overlap the above-mentioned inclined ridges, and there would be an addition of two thicknesses of paper to the thicknesses already existing at the points indicated, and these five thicknesses of paperat two points have a tendency to interfere with the 

